Extremely stuck, turning off Apex class

Hi Guys

I am extremely stuck, i am moving data from a sand box into production and i am getting the below 2 errors

TerritoryManualSwitchControllerTest.test1()

Class

95

Failure Message: "System.QueryException: List has no rows for assignment to SObject", Failure Stack Trace: "Class.TerritoryManualSwitchController.<init>: line 95, column 15 Class.TerritoryManualSwitchControllerTest.test1: line 25, column 48 External entry point"

TerritoryUpdateRecordsControllerTest.test1()

Class

36

Failure Message: "System.QueryException: List has no rows for assignment to SObject", Failure Stack Trace: "Class.TerritoryUpdateRecordsController.<init>: line 36, column 16 Class.TerritoryUpdateRecordsControllerTest.test1: line 25, column 49 External entry point"

I think i have found them in the system and they relate to apex classes, i have found what i think they are in the system, and need to disable them, i have read how to do it, it said go to the sandbox make them inactive then move in to production, i am wondering if this is correct, also i only want to disable them for an hour or so, so i can move my changes form the sand box to live, as this is preventing me from doing it, my main question is if i activate the classes in the sand box again will they go back to the way they was before i made them inactive, any feedback would be massively appreciated as i cannot call up the guys who wrote the apex classes for us as it is the weekend an their office is closed, this is a problem because we have Monday as the go live date for the business for the new changes :S. I thought everything would transferee over fine as i only made a fresh copy of the live environment on Thursday to start transferring data from the sand box where all the new changes were made, so because there was no errors i though going in to the live system it would be fine how wrongs was i :S